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[Solved] /var is filling continuously

 
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Homework and Emergencies Emergency UNIX and Linux Support [Solved] /var is filling continuously
# 1  
Old 09-12-2011
[Solved] /var is filling continuously

Hi All,

I have Solaris-10 machine. Yesterday I patched it with Solaris-10 patch Cluster. Since then glance software is filling up /var/core continuously. In every few minutes, it will fill /var to 100%.
Glance runs through /etc/init.d/mwa and I already stopped it, still core files are generating, I don't know, from where. How will I know and can stop it. Please help.

Code:
# ps -ef | egrep -i "mwa|glance"
    root 18647 17055   0 05:18:09 pts/2       0:00 egrep -i mwa|glance
# du -sh /var/core/*
 3.5G   /var/core/core_tstbgp11_glance_0_1984_1315829327_16469
 3.5G   /var/core/core_tstbgp11_glance_0_1984_1315829627_18040
 2.1G   /var/core/core_tstbgp11_glance_0_1984_1315829928_19553
# df -h .
Filesystem             size   used  avail capacity  Mounted on
/dev/vx/dsk/bootdg/var
                        12G    12G     0K   100%    /var
# uname -a
SunOS tstbgp11 5.10 Generic_144488-17 sun4u sparc SUNW,Sun-Fire-V490

Regards
# 2  
Old 09-12-2011
You can disable writing core files to /var/core by using:
Code:
coreadm -d global

But you should still investigate why your applications keeps crashing...
# 3  
Old 09-12-2011
# 4  
Old 09-12-2011
Quote:
Originally Posted by yazu
Hi Yazu,

I tried your steps, but still it is generating core files
Code:
# ps -ef | egrep -i "sco|mwa|ttd|midaemon"
    root 10163 26426   0 06:27:37 pts/1       0:00 egrep -i sco|mwa|ttd|midaemon
# du -sh /var/core/*
 3.5G   /var/core/core_tstbgp11_glance_0_1984_1315833828_9576

# 5  
Old 09-12-2011
Can you try following below steps and see if you are still getting the core files.

Code:
 
/opt/perf/bin/mwa stop
/opt/perf/bin/midaemon -T [If the midaemon is still active]
/opt/perf/bin/ttd -k [If the ttd is still active]
/opt/perf/bin/perfstat

This will stop all the performance tools and you can see the same in the output of the last command.

After this the core files due to glance should not be there since we haven't started anything.

If still you are getting the core files, then please collect the below command output for every minute.

Code:
 
ps -ef

Once a core file is generated you can get the process number from its name and check which process is making it to crash and can daignose it better.

Regards,
Vishal
# 6  
Old 09-12-2011
Hi Vishal,

I ran all mentioned commands. /opt/perf/bin/perfstat also shows as below
Code:
MeasureWare scope status:
WARNING: scopeux    is not active (MWA data collector)
MeasureWare background daemon status:
(Should always be running when the system is up)
WARNING: ttd        is not active (Transaction Tracking daemon)
MeasureWare server status:
WARNING: alarmgen   is not active (alarm generator)
WARNING: agdbserver is not active (alarm database server)
WARNING: perflbd    is not active (location broker)
WARNING: rep_server is not active (repository server)

But still core file is generating
Code:
# ls -l /var/core
total 10943792
-rw-------   1 root     root     3772379034 Sep 12 07:16 core_tstbgp11_glance_0_1984_1315836828_24759
-rw-------   1 root     root     1828080968 Sep 12 07:19 core_tstbgp11_glance_0_1984_1315837127_26379
# ps -ef | egrep -i "sco|mwa|ttd|midaemon"
    root 24761     1   0 07:13:31 ?           0:00 /opt/perf/bin/midaemon
    root 26954 26426   0 07:20:06 pts/1       0:00 egrep -i sco|mwa|ttd|midaemon

I killed PID 24761, deleted core file, waited for 2 minutes. And again I can see core file is generating. Something is starting midaemon
Code:
# ls
core_tstbgp11_glance_0_1984_1315837428_28015
# ps -ef | egrep -i "sco|mwa|ttd|midaemon"
    root 28586 26426   0 07:24:29 pts/1       0:00 egrep -i sco|mwa|ttd|midaemon
    root 28017     1   0 07:23:31 ?           0:00 /opt/perf/bin/midaemon

# 7  
Old 09-12-2011
Post the output of
Code:
crontab -l


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